WO2014073334A1 - Wet wipe and packaging for wet wipe - Google Patents
Wet wipe and packaging for wet wipe Download PDFInfo
- Publication number
- WO2014073334A1 WO2014073334A1 PCT/JP2013/077971 JP2013077971W WO2014073334A1 WO 2014073334 A1 WO2014073334 A1 WO 2014073334A1 JP 2013077971 W JP2013077971 W JP 2013077971W WO 2014073334 A1 WO2014073334 A1 WO 2014073334A1
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- WIPO (PCT)
- Prior art keywords
- wet wipes
- synthetic fiber
- cross
- sectional shape
- nonwoven fabric
- Prior art date
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- 0 C(C1)*11CCCC1 Chemical compound C(C1)*11CCCC1 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0208—Tissues; Wipes; Patches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/10—Washing or bathing preparations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
- B65D83/0805—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession through an aperture in a wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
- B65D83/0894—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession the articles being positioned relative to one another or to the container in a special way, e.g. for facilitating dispensing, without additional support
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- A47K10/32—Dispensers for paper towels or toilet-paper
- A47K10/42—Dispensers for paper towels or toilet-paper dispensing from a store of single sheets, e.g. stacked
- A47K2010/428—Details of the folds or interfolds of the sheets
Definitions
- the present invention relates to wet wipes and wet wipes packages.
- Patent Document 1 a papermaking raw material containing moisture is supplied onto a support for the purpose of obtaining a nonwoven fabric having high strength, bulkiness, and flexibility. Forming a layer and injecting high-pressure steam onto the paper layer using a steam nozzle, and the step of injecting high-pressure steam into the paper layer has a moisture content of the paper layer of 10 to 45.
- steam to the said paper layer after setting to% is described.
- Patent Document 2 aims to provide a nonwoven fabric having high strength, bulkiness, and flexibility, and supplies a papermaking raw material containing moisture onto the support.
- a step of forming a paper layer a step of injecting a high-pressure water stream onto the paper layer from a high-pressure water nozzle provided on the support, and a high-pressure water stream from a steam nozzle provided on the support.
- a method for producing a non-woven fabric is described, which includes a step of spraying high-pressure steam onto the sprayed paper layer and a step of drying the paper layer sprayed with the high-pressure steam.
- the nonwoven fabric produced by Patent Document 1 and Patent Document 2 has high strength, is bulky, and has flexibility, but is a wet wipes package, particularly a pop-up wet wipes package. Then, depending on use conditions, wet wipes may be connected by a water film of a chemical solution, and a plurality of wet wipes may be taken out from the packaging body at a time, leaving room for improvement. Therefore, an object of the present disclosure is to provide wet wipes that can be easily taken out one by one.
- the present disclosure is a wet wipe comprising a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric, wherein the nonwoven fabric has a specific gravity of 1.40% by mass of the nonwoven fabric. More than 0 synthetic fibers and 60 to 95% by weight cellulosic fibers of the nonwoven fabric, and the synthetic fibers comprise 20 to 100% by weight of the synthetic fibers and synthetic fibers having an irregular cross-sectional shape We have found a wet wipe characterized by this.
- the wet wipes of the present disclosure can be easily taken out one by one.
- FIG. 1 is a diagram illustrating an example of an irregular cross-sectional shape of a synthetic fiber having an irregular cross-sectional shape.
- FIG. 2 is a diagram illustrating another example of the irregular cross-sectional shape of the synthetic fiber having the irregular cross-sectional shape.
- FIG. 3 is a diagram for explaining a cross-sectional shape.
- FIG. 4 is a schematic view of a nonwoven fabric manufacturing apparatus for manufacturing a nonwoven fabric.
- FIG. 5 is a diagram illustrating an example of a high-pressure water flow nozzle.
- FIG. 6 is a diagram illustrating an example of a steam nozzle.
- FIG. 7 is a perspective view of a wet wipes package according to one embodiment of the present disclosure.
- FIG. 1 is a diagram illustrating an example of an irregular cross-sectional shape of a synthetic fiber having an irregular cross-sectional shape.
- FIG. 2 is a diagram illustrating another example of the irregular cross-sectional shape of the synthetic fiber having the irregular cross-sectional shape.
- FIG. 8 is a cross-sectional view taken along line AA of the wet wipes package 101 shown in FIG.
- FIG. 9 is a view for explaining a plurality of wet wipes housed in the wet wipes package shown in FIG. 8.
- FIG. 10 is a cross-sectional view of a wet wipes package according to another embodiment of the present disclosure.
- FIG. 11 is a cross-sectional view of a wet wipes package according to yet another embodiment of the present disclosure.
- the wet wipes of the present disclosure includes a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric.
- the nonwoven fabric produced by the wet method includes about 5 to about 40% by weight of the nonwoven fabric, a synthetic fiber having a specific gravity of more than 1.0, and about 60 to about 95% by weight of the nonwoven fabric of cellulosic fibers.
- the synthetic fibers include synthetic fibers having an irregular cross-sectional shape that is about 20 to about 100% by mass of the synthetic fibers.
- “irregular cross-sectional shape” means a cross-sectional shape other than a substantially circular shape.
- the irregular cross-sectional shape is preferably a cross-sectional shape having at least one depression, more preferably a cross-sectional shape consisting of a substantially polygonal shape and having at least one side of the substantially polygonal shape depressed, and More preferably, the cross-sectional shape is formed of a substantially polygonal shape and all sides of the substantially polygonal shape are recessed.
- the “synthetic fiber having an irregular cross-sectional shape” may be abbreviated as an irregular cross-sectional synthetic fiber
- the “abnormal cross-sectional shape” may be abbreviated as an irregular cross-section.
- Examples of the polygon include a substantially n-gonal shape (n is an integer of 3 or more, for example, an integer of 3 to 12, for example, a substantially triangular shape, a substantially rectangular shape, a substantially pentagonal shape, a substantially hexagonal shape, a substantially heptagonal shape, a substantially octagonal shape.
- n is an integer of 3 or more, for example, an integer of 3 to 12, for example, a substantially triangular shape, a substantially rectangular shape, a substantially pentagonal shape, a substantially hexagonal shape, a substantially heptagonal shape, a substantially octagonal shape.
- a square shape etc. are mentioned.
- the modified cross-section synthetic fiber 1 shown in FIG. 1A has a substantially triangular shape and a cross-sectional shape in which all three sides are recessed. More specifically, the modified cross-section synthetic fiber 1 shown in FIG. 1A is formed between three protrusions 3 (3 ′, 3 ′′, and 3 ′ ′′) and two adjacent protrusions 3. And has a cross-sectional shape having a total of three indentations 2 (2 ′, 2 ′′ and 2 ′ ′′).
- the deformed cross-section synthetic fiber 1 shown in FIG. 1B has a substantially square shape and a cross-sectional shape in which all four sides are recessed. More specifically, the modified cross-section synthetic fiber 1 shown in FIG. 1 (b) has four protrusions 3 (3 ′, 3 ′′, 3 ′ ′′ and 3 ′′ ′′) adjacent to 2 It has a cross-sectional shape having a total of four depressions 2 (2 ′, 2 ′′, 2 ′ ′′ and 2 ′′ ′′) formed between the two protrusions 3. In addition, the cross section of the irregular cross-section synthetic fiber 1 shown by FIG.1 (b) is also called a cross-section.
- the deformed cross-section synthetic fiber 1 shown in FIG. 1C has a substantially pentagonal shape and a cross-sectional shape in which all five sides are recessed. More specifically, the modified cross-section synthetic fiber 1 shown in FIG. 1 (c) includes five protrusions 3 (3 ′, 3 ′′, 3 ′ ′′, 3 ′′ ′′ and 3 ′′ ′′. ') And two indentations 2 formed between two adjacent protrusions 3 (2', 2 '', 2 ''',2''''and2''''') And has a cross-sectional shape. In addition, the cross section of the irregular cross-section synthetic fiber 1 shown by FIG.1 (c) is also called a star-shaped cross section.
- the deformed cross-section synthetic fiber 1 shown in FIG. 1D has a substantially hexagonal shape and a cross-sectional shape in which all six sides are recessed. More specifically, the modified cross-section synthetic fiber 1 shown in FIG. 1 (d) includes six protrusions 3 (3 ′, 3 ′′, 3 ′ ′′, 3 ′′ ′′, 3 ′′ ′′. 'And 3 """) and two adjacent protrusions 3 formed in total 6 recesses 2 (2', 2", 2 '", 2"”) , 2 ''''' and 2 '''''). In addition, the cross section of the irregular cross-section synthetic fiber 1 shown by FIG.1 (d) is also called a star-shaped cross section.
- the modified cross-section synthesis At least one side constituting the cross section of the fiber does not need to have a depression.
- the modified cross-section synthetic fiber 1 shown in FIG. 1 (b) at least one of the four sides forming a substantially quadrilateral does not have to have a depression, that is, four depressions 2 ′, 2 ′′. , 2 ′′ ′ and 2 ′′ ′′, at least one recess may not be formed.
- FIG. 2A A modified cross-section synthetic fiber 1 shown in FIG. 2A has a substantially C-shaped cross-sectional shape, and has one recess 2 and two protrusions 3.
- a modified cross-section synthetic fiber 1 shown in FIG. 2 (b) has a substantially V-shaped cross-sectional shape, and has one recess 2 and two protrusions 3.
- a modified cross-section synthetic fiber 1 shown in FIG. 2C has a substantially W-shaped cross-sectional shape, and includes three depressions 2 and two protrusions 3.
- the modified cross-section synthetic fiber can hold a chemical solution containing water having a high surface tension in a recess or the like in its cross section. Therefore, it is difficult to connect one by one, and it can be easily taken out one by one and is easy to take out.
- the modified cross-section synthetic fiber has a high volume that retains the chemical liquid containing water with high surface tension in the recess of the cross section, etc. It is difficult for wet wipes to be connected to each other by a water film of a chemical solution, and it is possible to achieve both high chemical solution concentration and ease of removal.
- the irregular cross-section synthetic fiber is higher in rigidity than a general synthetic fiber having the same fineness (dtex), for example, a synthetic fiber having a substantially circular cross-sectional shape
- the nonwoven fabric including the irregular cross-section synthetic fiber is a chemical solution. Even when it is impregnated, the bulk tends not to be crushed. Therefore, since the buttocks of the nonwoven fabric formed by the high-pressure water stream and the high-pressure steam can maintain the bulk and keep the chemical liquid after impregnating the chemical liquid, It becomes difficult to connect by the membrane, and the phenomenon that a plurality of wet wipes are taken out from the packaging body at a time is reduced.
- the cross section of the irregular-shaped synthetic fiber can be defined by the degree of irregularity when an inscribed circle and a circumscribed circle can be assumed.
- the profile is preferably in the range of about 1.2 to about 10.0, and in the range of about 1.4 to about 8.0. Is more preferably in the range of about 1.6 to about 6.0, even more preferably in the range of about 1.7 to about 5.0, and about 1.8 to about 4 Even more preferably in the range of 0.0.
- the synthetic fiber not having the above-described irregular cross-sectional shape can have an irregularity of about 1.0 to about 1.2.
- the degree of profile is preferably within the above range.
- the circumscribed circle and its radius are represented as CC and r CC in FIGS. 3A to 3D, respectively, and the inscribed circle and its radius are similarly represented as IC and r IC , respectively. It has been.
- the modified cross-section synthetic fiber has a cross-sectional shape having three protrusions and three depressions as shown in FIG. 1 (a), or FIG. 1 (b). It is preferable to have a cross-sectional shape having four protrusions and four depressions as shown in FIG. 1, and four protrusions and four depressions as shown in FIG. It is more preferable to have a cross-sectional shape having
- the synthetic fiber may include, in addition to the irregular cross-section synthetic fiber, a synthetic fiber having no irregular cross-sectional shape, for example, a synthetic fiber having a substantially circular cross-sectional shape.
- Synthetic fibers having no irregular cross-sectional shape can be entangled with other synthetic fibers or other cellulosic fibers to impart strength, particularly wet strength, to the wet wipes of the present disclosure.
- the synthetic fibers include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate (PET), polyamides such as nylon, and the like.
- PET polyethylene terephthalate
- polyamides such as nylon, and the like.
- polyethylene terephthalate is preferable from the viewpoint of the stability of papermaking.
- the synthetic fiber preferably has a fineness of about 0.5 to about 3.0 dtex.
- the synthetic fiber preferably has a fiber length of about 3 to about 15 mm. This is from the viewpoint of the stability of papermaking and the strength of the wet wipes formed, particularly the wet strength.
- the synthetic fiber has a specific gravity greater than about 1.0. Since the nonwoven fabric constituting the wet wipes of the present disclosure is manufactured by a wet method, if the synthetic fiber has a specific gravity of about 1.0 or less, it is difficult to form a homogeneous web because the synthetic fiber floats in water. Because it becomes.
- the synthetic fiber has no upper limit on the specific gravity from the viewpoint of the wet method, and the upper limit will be about 1.5 considering the specific gravity of a general synthetic fiber used for wet wipes.
- the synthetic fiber, in particular, the modified cross-section synthetic fiber may be a hydrophilic synthetic fiber. This is because it becomes easier to hold a chemical solution containing water having a high surface tension in a recess or the like of the cross section.
- the hydrophilization treatment include coating the surface of the synthetic fiber with a hydrophilic agent, mixing the hydrophilic agent with a synthetic resin that is a raw material of the synthetic fiber, and the like.
- cellulosic fibers include pulp, for example, wood pulp, for example, soft pulp, hardwood and other chemical pulp, semi-chemical pulp, mechanical pulp, mercerized pulp and crosslinked pulp formed by chemically treating the wood pulp, Non-wood fibers such as hemp and cotton, and regenerated cellulose fibers such as rayon, for example, viscose rayon, copper ammonia rayon and the like.
- the cellulose-based fiber a combination of pulp and rayon is preferable from the viewpoints of the strength of wet wipes to be formed, particularly wet strength and touch, and cost. Moreover, it is preferable that the said cellulose fiber has specific gravity over about 1.0 from a viewpoint of manufacturing the nonwoven fabric which comprises wet wipes with a wet method.
- the nonwoven fabric constituting the wet wipes of the present disclosure comprises about 5 to about 40% by mass of the nonwoven fabric, a synthetic fiber having a specific gravity of more than 1.0, and about 60 to about 95% by mass of the cellulose-based fiber of the nonwoven fabric.
- a synthetic fiber having a specific gravity of more than 1.0 and about 60 to about 95% by mass of the cellulose-based fiber of the nonwoven fabric.
- the synthetic fiber includes about 20 to about 100% by mass of the modified cross-section synthetic fiber, and preferably about 30 to about 90% by mass of the odd-shaped cross-section synthetic fiber. And more preferably from about 40 to about 80% by weight of modified cross-section synthetic fibers.
- the wet wipes can be easily taken out one by one, particularly in the pop-up type wet wipes package.
- the “pop-up type” related to the wet wipes packaging means that the wet wipes can be sequentially taken out from the wet wipes packaging. More specifically, when a certain wet wipe is taken out, it means that a part of the next wet wipe protrudes from the opening of the wet wipes package.
- the nonwoven fabric constituting the wet wipes of the present disclosure includes a modified cross-section synthetic fiber having a specific gravity of more than 1.0 and about 1 to about 20 mass% of the nonwoven fabric, and an irregular shape of about 1 to about 20 mass% of the nonwoven fabric. And about 10 to about 40% by weight rayon of the nonwoven fabric and about 50 to about 85% pulp by weight of the nonwoven fabric.
- the formed wet wipes can be easily taken out one by one, and the formed wet wipes are excellent in strength, particularly wet strength.
- the chemical solution to be impregnated into the nonwoven fabric is not particularly limited, and examples thereof include a mixture of antiseptics such as distilled water, propylene glycol, and parabens.
- the wet wipes of the present disclosure preferably contain the chemical solution in a ratio of about 180 to about 400 parts by mass per 100 parts by mass of the nonwoven fabric. This is from the viewpoint of the stain removal property of wet wipes and the moisture remaining property on an object (for example, skin) from which the stain is removed.
- the wet wipes of the present disclosure are approximately the above chemical solution per 100 parts by mass of the nonwoven fabric. It may be included in a ratio of 300 to about 400 parts by mass.
- the nonwoven fabric constituting the wet wipes of the present disclosure is not particularly limited except that the fibers constituting the nonwoven fabric are adjusted to a predetermined range.
- the nonwoven fabric is manufactured according to the methods described in Patent Literature 1 and Patent Literature 2. be able to.
- an example of the manufacturing method of the nonwoven fabric which comprises the wet wipes of this indication is shown.
- FIG. 4 is a schematic view of the nonwoven fabric manufacturing apparatus 11 for manufacturing the nonwoven fabric.
- a papermaking raw material containing synthetic fibers and cellulosic fibers is supplied from a raw material supply head 12 onto a support of a web forming conveyor 13 to form a web 14 on the support.
- the support preferably has air permeability through which steam can pass, and examples thereof include a wire mesh and a blanket.
- the web 14 formed on the support is moderately dehydrated by the suction box 15.
- the web 14 collects water jetted from the two high-pressure water nozzles 16 disposed on the upper surface of the web 14 and the high-pressure water nozzle 16 disposed at a position facing the high-pressure water nozzle 16 across the web 14. It passes between the two suction boxes 15 to perform. At this time, the web 14 has a groove formed on the upper surface (the surface on the high pressure water flow nozzle 16 side) due to the high pressure water flow injected from the high pressure water flow nozzle 16.
- FIG. 1 An example of the high-pressure water flow nozzle 16 is shown in FIG.
- a plurality of high-pressure water streams 31 arranged in the width direction (CD) of the web 14 are jetted toward the web 14 from the high-pressure water nozzle 16.
- a plurality of grooves 32 extending in the machine direction (MD) along the width direction of the web 14 are formed on the upper surface of the web 14.
- the fibers of the web 14 are entangled by injecting the high-pressure water stream 31 onto the web 14.
- the web 14 is transferred to the web transport conveyor 18, and then the web 14 is transferred to the web transport conveyor 19.
- the web 14 is transferred to the drying dryer 20.
- An example of the drying dryer 20 is a Yankee dryer.
- the web 14 is attached to a drum heated to about 120 ° C. by steam and dried.
- the moisture content of the web 14 is preferably adjusted to about 10 to about 45% by mass by drying with the drying dryer 20, and more preferably about 20 to about 40% by mass.
- the moisture content is the percentage of water relative to the total mass of the web containing water.
- the moisture content of the web is lower than 10% by mass, the hydrogen bonding force between the web fibers becomes strong, and the energy required to loosen the web fibers by high-pressure steam described later becomes very high.
- the moisture content of the web is higher than 45% by mass, the energy required for drying the web below a predetermined moisture content by high-pressure steam described later becomes very high.
- the web 14 is moved onto the mesh-shaped outer peripheral surface of the cylindrical suction drum 21, and high-pressure steam is sprayed onto the web 14 from the steam nozzle 22 disposed above the suction drum 21.
- Another groove is formed on the same surface (surface on the steam nozzle 22 side) of the web 14 as the surface on which the groove is formed by the high-pressure water flow 31 by the high-pressure steam jetted from the steam nozzle 22, and the nonwoven fabric 23 is formed. It is formed.
- FIG. 1 An example of the steam nozzle 22 is shown in FIG.
- a plurality of high-pressure steams 41 arranged in the width direction (CD) of the web 14 are jetted from the steam nozzle 22 toward the web 14.
- a plurality of grooves 42 extending in the machine direction (MD) are formed on the upper surface of the nonwoven fabric 23 to be formed.
- the moisture content of the nonwoven fabric 23 after jetting high-pressure steam is preferably 45% by mass or less, and more preferably 40% by mass or less. If the moisture content is higher than 45% by mass, it may be difficult to reduce the moisture content of the nonwoven fabric 23 to 5% by mass or less by drying with a drying drier described later.
- the nonwoven fabric 23 is transferred to a drying dryer 24.
- An example of the drying dryer 24 is a Yankee dryer.
- the nonwoven fabric 23 is attached to a drum heated to about 150 ° C. by steam and dried.
- the moisture content of the nonwoven fabric 23 after passing through the drying dryer 24 is preferably 5% by mass or less.
- the nonwoven fabric 23 is wound around the winder 25.
- the nonwoven fabric constituting the wet wipes of the present disclosure can be manufactured, for example, according to the methods described in Patent Document 1 and Patent Document 2, in addition to the above-described method.
- Patent Document 1 and Patent Document 2 For details, refer to Patent Document 1 and Patent Document 2. Please refer.
- the nonwoven fabric constituting the wet wipes of the present disclosure can have a plurality of ridges and grooves derived from a high-pressure water stream, high-pressure steam, and the like.
- a high-pressure water stream high-pressure steam
- the nonwoven fabric constituting the wet wipes of the present disclosure can have a plurality of ridges and grooves derived from a high-pressure water stream, high-pressure steam, and the like.
- the nonwoven fabric which comprises the wet wipes of this indication can have a convex part and a recessed part which originate in the shape of a support body.
- the wet wipes of the present disclosure can be manufactured by impregnating a non-woven fabric constituting the wet wipes with a chemical solution.
- FIG. 7 is a perspective view of a wet wipes package according to one embodiment of the present disclosure
- FIG. 8 is a cross-sectional view taken along line AA of the wet wipes package 101 shown in FIG. It is.
- a plurality of wet wipes (not shown) are sequentially taken out inside the packaging body 102 having a top portion T having an opening 103 and a bottom portion B. It is stored in a form that can be used.
- the packaging body 102 has a sealing material 104 that covers the opening 103.
- the packaging body 102 has a bag shape, and when the opening 103 is sealed with the sealing material 104, the wet wipes inside the packaging body 102 can be sealed, and the evaporation of the medicine is suppressed. Each wet wipe can be removed through the opening 103.
- the sealing material 104 is coated with an adhesive on the surface in contact with the packaging body 102 in order to repeatedly seal the wet wipes inside the packaging body 102.
- a plurality of wet wipes 105 are stacked in the direction from the top T to the bottom B inside the packaging body 102.
- the plurality of wet wipes 105 have a substantially Z-shaped folded structure.
- FIG. 9 is a view for explaining a plurality of wet wipes housed in the wet wipes package shown in FIG. 8.
- the wet wipes 105 ′ and the wet wipes 105 ′′ have a portion 105 ′′ T of the wet wipes 105 ′′ (bottom side wet wipes) located on the bottom B side and the top thereof.
- Part 105′B of wet wipe 105 ′ (top wet wipe) adjacent to T side is part 105 ′′ T of wet wipe 105 ′′ (bottom wet wipe).
- 105 ′ (top wet wipes) overlap each other so as to be located on the top T side of a part 105′B.
- a portion 105 ′ of the wet wipes 105 ′ ′′ (bottom side wet wipes) located on the bottom B side. ′′ T and a portion 105 ′′ B of the wet wipe 105 ′′ (top wet wipe) adjacent to the top T side of the wet wipe 105 ′ ′′ (bottom wet wipe)
- the portions 105 ′ ′′ T overlap each other so as to be located on the top T side of the portion 105 ′′ B of the wet wipes 105 ′′ (the top wet wipes).
- the top side end of the bottom wet wipes located on the bottom side and the bottom side end of the top wet wipes adjacent to the top side are the bottom side wet wipes. Are overlapped with each other so that the top side end portions are located on the top side with respect to the bottom side end portion of the top wet wipes.
- a plurality of wet wipes are stacked as shown in FIGS. 8 and 9, so that when the wet wipes 105 ′ is taken out, a part of the wet wipes 105 ′′ (mainly 105 ′′ T) is pulled out and protrudes from the packaging body 102, making it easier to remove the wet wipes 105 '' for the next use.
- FIG. 10 is a cross-sectional view of a wet wipes package according to another embodiment of the present disclosure, and is a cross-sectional view corresponding to the line AA of the wet wipes package 101 shown in FIG. 7.
- the wet wipes 105 have a substantially C-shaped folding structure.
- the top side end of the bottom side wet wipes located on the bottom side, and the bottom of the top side wet wipes adjacent to the top side
- the side end portions overlap each other so that the top side end portion of the bottom side wet wipes is located on the top side with respect to the bottom side end portion of the top side wet wipes.
- FIG. 11 is a cross-sectional view of a wet wipes package according to another embodiment of the present disclosure, and is a cross-sectional view corresponding to the line AA of the wet wipes package 101 shown in FIG.
- the wet wipes 105 have a substantially Z-shaped folding structure, similar to the embodiment shown in FIG. 8, but a plurality of wet wipes 105 are arranged in the opposite direction, and The range of overlapping with adjacent wet wipes is different from the embodiment shown in FIG.
- 7 to 11 can be manufactured according to a method known in the art, for example, a method described in JP-A-2000-51118.
- the non-woven fabric is cut into a size of 190 ⁇ 135 mm (extraction direction ⁇ width direction), and a total of 60 sheets are laminated as shown in FIG. 8, and the 60 laminates are packaged in a packaging body. Subsequently, the nonwoven fabric is impregnated with the chemical at a ratio of 250 parts by mass with respect to 100 parts by mass of the non-woven fabric, and then the package body is sealed to produce a pop-up wet wipes package.
- the chemical solution contains water, propylene glycol as a moisturizing agent, and a preservative.
- a pop-up wet wipes package is set in a commercially available wet wipe case, and the wet wipes are taken out one by one.
- the n-th wet wipes (1, 2,..., n,..., 60) are taken out, they are pulled together by the n-th wet wipes (wet wipes taken directly) together.
- the number of wet wipes taken out is counted.
- the take-out ease is 100%
- the total number of wet wipes taken out indirectly is 30 (all wet In the case of half of wipes), the ease of removal is 50%.
- Example 1 71% by weight of softwood bleached kraft pulp (NBKP), 21% by weight of rayon (Corona, manufactured by Daiwabo Rayon Co., Ltd.) having a fineness of 1.1 dtex and a fiber length of 7 mm, a fineness of 0.6 dtex and 4% by mass of polyethylene terephthalate fiber having a fiber length of 10 mm and 4% by mass of polyethylene terephthalate fiber having a cross-section having a fineness of 2.2 dtex and a fiber length of 5 mm (trade name: X531 manufactured by Unitika Ltd.) % was prepared, and the nonwoven fabric 1 was manufactured using the nonwoven fabric manufacturing apparatus as shown in FIG.
- the polyethylene terephthalate fiber had an inscribed circle radius r IC of 8.9 ⁇ m, a circumscribed circle radius r CC of 17.1 ⁇ m, and an irregularity of 1.92. .
- a papermaking raw material was supplied from a raw material supply head onto a support (OS80 manufactured by Nippon Filcon Co., Ltd.), and the papermaking raw material was dehydrated using a suction box to form a web.
- the moisture content of the web was 80% by mass.
- a high-pressure water stream was jetted from two high-pressure water stream nozzles onto the web. Using two high-pressure water nozzles, the high-pressure water energy injected into the web was about 0.285 kW / m 2 .
- the distance between the tip of the high pressure water nozzle and the top surface of the web was about 10 mm.
- the hole diameter of the high-pressure water flow nozzle was about 92 ⁇ m, and the hole pitch was about 0.5 mm.
- the web was transferred to two web conveyors and then transferred to a Yankee dryer heated to 120 ° C. and dried.
- high-pressure steam was sprayed from one steam nozzle onto the web.
- the vapor pressure of the high pressure steam was about 0.7 MPa and the steam temperature was about 175 ° C.
- the distance between the tip of the steam nozzle and the upper surface of the web was about 2 mm.
- the hole diameter of the steam nozzle was about 300 ⁇ m, and the hole pitch was about 2.0 mm.
- the suction force with which the suction drum sucks the web was about -1 kPa.
- a stainless steel 18 mesh perforated sleeve was used on the outer periphery of the suction drum.
- Nonwoven fabric 1 had a basis weight of 48 g / m 2 and a thickness of 0.318 mm. In Example 1, the paper making speed was about 70 m / min.
- Example 1 71% by weight of softwood bleached kraft pulp (NBKP), 21% by weight of rayon (Corona, manufactured by Daiwabo Rayon Co., Ltd.) having a fineness of 1.1 dtex and a fiber length of 7 mm, a fineness of 0.6 dtex and A nonwoven fabric 2 was produced in the same manner as in Example 1 except that the raw material was changed to a papermaking raw material containing 8% by mass of polyethylene terephthalate fiber having a fiber length of 10 mm.
- Nonwoven fabric 2 had a basis weight of 48 g / m 2 and a thickness of 0.322 mm. Further, when a take-out test was carried out in the same manner as in Example 1, the take-out ease (%) was 80%.
- J1 A wet wipe containing a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric
- the non-woven fabric includes 5 to 40% by mass of the non-woven fabric and a synthetic fiber having a specific gravity exceeding 1.0, and 60 to 95% by mass of the non-woven fabric cellulosic fiber, and the synthetic fiber is the synthetic fiber. 20 to 100% by weight of a synthetic fiber having an irregular cross-sectional shape,
- J4 Any one of J1 to J3, wherein the synthetic fiber having the irregular cross-sectional shape is selected from the group consisting of a substantially triangular shape, a substantially square shape, a substantially pentagonal shape, and a substantially hexagonal shape and has a cross-sectional shape in which all sides are recessed.
- the non-woven fabric is 1 to 20% by mass of the non-woven fabric, a synthetic fiber having an irregular cross-sectional shape having a specific gravity of more than 1.0, and a synthetic fiber having 1 to 20% by mass of the non-woven fabric and not having an irregular cross-sectional shape
- a plurality of wet wipes are stored in a form that can be sequentially taken out inside a packaging main body having a top part having an opening and a bottom part.
- a plurality of wet wipes according to any one of J1 to J10 are stacked in a direction from the bottom to the top, A part of the bottom wet wipes located on the bottom side and a part of the top wet wipes adjacent to the top side are part of the bottom wet wipes of the top wet wipes. Overlapping each other so as to be located on the top side rather than a part,
- the said package body characterized by the above-mentioned.
Abstract
Description
従って、本開示は、1枚ずつ、容易に取り出すことができるウェットワイプスを提供することを目的とする。 The nonwoven fabric produced by
Therefore, an object of the present disclosure is to provide wet wipes that can be easily taken out one by one.
本開示のウェットワイプスは、湿式法により製造された不織布と、上記不織布に含浸させた薬液とを含む。
上記湿式法により製造された不織布は、上記不織布の約5~約40質量%の、比重が1.0超の合成繊維と、上記不織布の約60~約95質量%のセルロース系繊維とを含む。
また、上記合成繊維は、当該合成繊維の約20~約100質量%の、異形の断面形状を有する合成繊維を含む。 Hereinafter, the wet wipes of the present disclosure will be described in detail below.
The wet wipes of the present disclosure includes a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric.
The nonwoven fabric produced by the wet method includes about 5 to about 40% by weight of the nonwoven fabric, a synthetic fiber having a specific gravity of more than 1.0, and about 60 to about 95% by weight of the nonwoven fabric of cellulosic fibers. .
The synthetic fibers include synthetic fibers having an irregular cross-sectional shape that is about 20 to about 100% by mass of the synthetic fibers.
上記異形の断面形状としては、少なくとも1つの窪み部を有する断面形状が好ましく、そして略多角形から成り且つ当該略多角形の少なくとも1つの辺が窪んでいる断面形状であることがより好ましく、そして略多角形から成り且つ当該略多角形の全ての辺が窪んでいる断面形状であることがさらに好ましい。
なお、本明細書において、「異形の断面形状を有する合成繊維」を、異形断面合成繊維と略称する場合があり、そして「異形の断面形状」を、異形断面と略称する場合がある。 In the present specification, “irregular cross-sectional shape” means a cross-sectional shape other than a substantially circular shape.
The irregular cross-sectional shape is preferably a cross-sectional shape having at least one depression, more preferably a cross-sectional shape consisting of a substantially polygonal shape and having at least one side of the substantially polygonal shape depressed, and More preferably, the cross-sectional shape is formed of a substantially polygonal shape and all sides of the substantially polygonal shape are recessed.
In the present specification, the “synthetic fiber having an irregular cross-sectional shape” may be abbreviated as an irregular cross-sectional synthetic fiber, and the “abnormal cross-sectional shape” may be abbreviated as an irregular cross-section.
なお、図1(b)に示される異形断面合成繊維1の断面は、十字断面とも称される。 The deformed cross-section
In addition, the cross section of the irregular cross-section
なお、図1(c)に示される異形断面合成繊維1の断面は、星形断面とも称される。 The deformed cross-section
In addition, the cross section of the irregular cross-section
なお、図1(d)に示される異形断面合成繊維1の断面は、星形断面とも称される。 The deformed cross-section
In addition, the cross section of the irregular cross-section
例えば、図1(b)に示される異形断面合成繊維1において、略四角形を形成する4つの辺の少なくとも1つが窪み部を有さなくともよい、すなわち、4つの窪み部2',2'',2'''及び2''''のうち、少なくとも1つの窪み部が形成されていなくともよい。 1 (a) to 1 (d) show examples of cross sections in which all sides are recessed in the modified cross-section synthetic fiber, but in the case of wet wipes according to other embodiments of the present disclosure, the modified cross-section synthesis At least one side constituting the cross section of the fiber does not need to have a depression.
For example, in the modified cross-section
図2(c)に示される異形断面合成繊維1は、略W型の断面形状を有し、3つの窪み部2と、2つの突起部3とを有する。 A modified cross-section
A modified cross-section
異形度は、断面の内接円の半径rICと、断面の外接円の半径rCCとに基づいて、次の式:
異形度=rCC/rIC
により定義されうる。 In addition, the cross section of the irregular-shaped synthetic fiber can be defined by the degree of irregularity when an inscribed circle and a circumscribed circle can be assumed.
The degree of profile is based on the radius r IC of the inscribed circle of the cross section and the radius r CC of the circumscribed circle of the cross section:
Deformity = r CC / r IC
Can be defined by
なお、上述の異形の断面形状を有しない合成繊維は、約1.0~約1.2の異形度を有することができる。 In wet wipes according to one of the embodiments of the present disclosure, the profile is preferably in the range of about 1.2 to about 10.0, and in the range of about 1.4 to about 8.0. Is more preferably in the range of about 1.6 to about 6.0, even more preferably in the range of about 1.7 to about 5.0, and about 1.8 to about 4 Even more preferably in the range of 0.0.
Note that the synthetic fiber not having the above-described irregular cross-sectional shape can have an irregularity of about 1.0 to about 1.2.
なお、外接円及びその半径は、図3(a)~(d)において、それぞれ、CC及びrCCとして表わされ、内接円及びその半径は、同様に、それぞれ、IC及びrICとして表わされている。 The greater the degree of irregularity, the greater the volume that can hold a chemical solution containing water with high surface tension, but the larger the degree of irregularity, the thinner the outer edge of the fiber cross section may become weaker, The degree of profile is preferably within the above range.
The circumscribed circle and its radius are represented as CC and r CC in FIGS. 3A to 3D, respectively, and the inscribed circle and its radius are similarly represented as IC and r IC , respectively. It has been.
上記異形の断面形状を有しない合成繊維は、他の合成繊維、又は他のセルロース系繊維と交絡して、本開示のウェットワイプスに、強度、特に湿潤強度を付与することができる。 The synthetic fiber may include, in addition to the irregular cross-section synthetic fiber, a synthetic fiber having no irregular cross-sectional shape, for example, a synthetic fiber having a substantially circular cross-sectional shape.
Synthetic fibers having no irregular cross-sectional shape can be entangled with other synthetic fibers or other cellulosic fibers to impart strength, particularly wet strength, to the wet wipes of the present disclosure.
なお、上記合成繊維は、湿式法の観点からはその比重に上限はなく、ウェットワイプスに用いられる一般的な合成繊維の比重を考慮すると、上限は約1.5程度であろう。 The synthetic fiber has a specific gravity greater than about 1.0. Since the nonwoven fabric constituting the wet wipes of the present disclosure is manufactured by a wet method, if the synthetic fiber has a specific gravity of about 1.0 or less, it is difficult to form a homogeneous web because the synthetic fiber floats in water. Because it becomes.
The synthetic fiber has no upper limit on the specific gravity from the viewpoint of the wet method, and the upper limit will be about 1.5 considering the specific gravity of a general synthetic fiber used for wet wipes.
上記親水化処理としては、合成繊維の表面に親水剤をコーティングすること、合成繊維の原料である合成樹脂に親水剤を混合すること等が挙げられる。 The synthetic fiber, in particular, the modified cross-section synthetic fiber may be a hydrophilic synthetic fiber. This is because it becomes easier to hold a chemical solution containing water having a high surface tension in a recess or the like of the cross section.
Examples of the hydrophilization treatment include coating the surface of the synthetic fiber with a hydrophilic agent, mixing the hydrophilic agent with a synthetic resin that is a raw material of the synthetic fiber, and the like.
また、上記セルロース系繊維は、ウェットワイプスを構成する不織布を湿式法で製造する観点から、約1.0超の比重を有することが好ましい。 As the cellulose-based fiber, a combination of pulp and rayon is preferable from the viewpoints of the strength of wet wipes to be formed, particularly wet strength and touch, and cost.
Moreover, it is preferable that the said cellulose fiber has specific gravity over about 1.0 from a viewpoint of manufacturing the nonwoven fabric which comprises wet wipes with a wet method.
本開示のウェットワイプスは、不織布100質量部当たり、上記薬液を、好ましくは約180~約400質量部の比率で含む。ウェットワイプスの汚れ除去性、並びに汚れを除去する対象物(例えば、肌)への水分残存性の観点からである。
また、高い薬液濃度と、取り出し容易性とを両立させるために、ウェットワイプスに大量の薬液を保持させる場合には、本開示のウェットワイプスは、不織布100質量部当たり、上記薬液を、約300~約400質量部の比率で含むことができる。 The chemical solution to be impregnated into the nonwoven fabric is not particularly limited, and examples thereof include a mixture of antiseptics such as distilled water, propylene glycol, and parabens.
The wet wipes of the present disclosure preferably contain the chemical solution in a ratio of about 180 to about 400 parts by mass per 100 parts by mass of the nonwoven fabric. This is from the viewpoint of the stain removal property of wet wipes and the moisture remaining property on an object (for example, skin) from which the stain is removed.
In addition, in order to achieve both high chemical solution concentration and easy removal, when wet wipes hold a large amount of chemical solution, the wet wipes of the present disclosure are approximately the above chemical solution per 100 parts by mass of the nonwoven fabric. It may be included in a ratio of 300 to about 400 parts by mass.
以下、本開示のウェットワイプスを構成する不織布の製造方法の一例を示す。 The nonwoven fabric constituting the wet wipes of the present disclosure is not particularly limited except that the fibers constituting the nonwoven fabric are adjusted to a predetermined range. For example, the nonwoven fabric is manufactured according to the methods described in
Hereinafter, an example of the manufacturing method of the nonwoven fabric which comprises the wet wipes of this indication is shown.
合成繊維及びセルロース系繊維を含む抄紙原料を、原料供給ヘッド12から、ウェブ形成コンベア13の支持体上に供給し、支持体上にウェブ14を形成する。支持体は、蒸気が通過可能な通気性を有することが好ましく、例えば、ワイヤーメッシュ、毛布等が挙げられる。 FIG. 4 is a schematic view of the nonwoven fabric manufacturing apparatus 11 for manufacturing the nonwoven fabric.
A papermaking raw material containing synthetic fibers and cellulosic fibers is supplied from a raw
次いで、不織布23を、巻き取り機25に巻き取る。 Next, as shown in FIG. 4, the
Next, the
本開示のウェットワイプスは、ウェットワイプスを構成する不織布に、薬液を含浸させることにより製造することができる。 Moreover, the nonwoven fabric which comprises the wet wipes of this indication can have a convex part and a recessed part which originate in the shape of a support body.
The wet wipes of the present disclosure can be manufactured by impregnating a non-woven fabric constituting the wet wipes with a chemical solution.
図7に示されるウェットワイプスの包装体101では、複数のウェットワイプス(図示せず)が、開口部103を有する頂部Tと、底部Bとを有する包装本体102の内部で、順次取り出すことができる形態で収納されている。
包装本体102は、開口部103を覆うシール材104を有する。 7 is a perspective view of a wet wipes package according to one embodiment of the present disclosure, and FIG. 8 is a cross-sectional view taken along line AA of the
In the wet
The
図9において、ウェットワイプス105'及びウェットワイプス105''の関係では、底部B側に位置するウェットワイプス105''(底部側ウェットワイプス)の一部105''Tと、その頂部T側に隣接するウェットワイプス105'(頂部側ウェットワイプス)の一部105'Bとが、ウェットワイプス105''(底部側ウェットワイプス)の一部105''Tがウェットワイプス105'(頂部側ウェットワイプス)の一部105'Bよりも頂部T側に位置するようにお互いに重なり合っている。 FIG. 9 is a view for explaining a plurality of wet wipes housed in the wet wipes package shown in FIG. 8.
In FIG. 9, the
図10に示されるウェットワイプスの包装体101では、図9と同様に、底部側に位置する底部側ウェットワイプスの頂部側端部と、その頂部側に隣接する頂部側ウェットワイプスの底部側端部とが、底部側ウェットワイプスの頂部側端部が頂部側ウェットワイプスの底部側端部よりも頂部側に位置するようにお互いに重なり合っている。 FIG. 10 is a cross-sectional view of a wet wipes package according to another embodiment of the present disclosure, and is a cross-sectional view corresponding to the line AA of the
In the wet
実施例及び比較例において評価された項目の測定条件は、以下の通りである。
[不織布の坪量]
坪量は、JIS L 1906の5.2に従って測定する。
[不織布の厚さ]
嵩は、(株)大栄科学精器製作所製 THICKNESS GAUGE UF-60を用いて測定する。 Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.
The measurement conditions of the items evaluated in the examples and comparative examples are as follows.
[Nonwoven fabric basis weight]
The basis weight is measured according to 5.2 of JIS L 1906.
[Thickness of non-woven fabric]
The bulk is measured using a THICKNESS GAUGE UF-60 manufactured by Daiei Scientific Instruments.
不織布を、190×135mm(取り出し方向×幅方向)のサイズにカットし、図8に示すように計60枚積層し、60枚の積層物を包装本体で包装する。次いで、不織布100質量部に対して薬液250質量部の割合で、不織布に薬液を含浸させ、次いで包装本体を密封することにより、ポップアップ型のウェットワイプスの包装体を製造する。
なお、薬液は、水と、保湿剤としてのプロピレングリコールと、防腐剤とを含む。 [Removal test of wet wipes]
The non-woven fabric is cut into a size of 190 × 135 mm (extraction direction × width direction), and a total of 60 sheets are laminated as shown in FIG. 8, and the 60 laminates are packaged in a packaging body. Subsequently, the nonwoven fabric is impregnated with the chemical at a ratio of 250 parts by mass with respect to 100 parts by mass of the non-woven fabric, and then the package body is sealed to produce a pop-up wet wipes package.
The chemical solution contains water, propylene glycol as a moisturizing agent, and a preservative.
n枚目(上から、1,2,…,n,…,60)のウェットワイプスを取り出した際に、n枚目のウェットワイプス(直接取り出されたウェットワイプス)に引っ張られて一緒に取り出されたウェットワイプス(間接的に取り出されたウェットワイプス)の枚数をカウントする。 A pop-up wet wipes package is set in a commercially available wet wipe case, and the wet wipes are taken out one by one.
When the n-th wet wipes (1, 2,..., n,..., 60) are taken out, they are pulled together by the n-th wet wipes (wet wipes taken directly) together. The number of wet wipes taken out (indirectly taken out wet wipes) is counted.
取り出し容易性(%)を、次の式:
取り出し容易性(%)=100×(60-m)/60
に従って算出する。 The experiment is continued until all 60 wet wipes are taken out, and the total number m of wet wipes taken out indirectly is counted.
Ease of removal (%), the following formula:
Ease of removal (%) = 100 × (60−m) / 60
Calculate according to
針葉樹晒クラフトパルプ(NBKP)71質量%と、繊度が1.1dtexであり且つ繊維長が7mmであるレーヨン(ダイワボウレーヨン(株)製、コロナ)21質量%と、繊度が0.6dtexであり且つ繊維長が10mmであるポリエチレンテレフタラート繊維4質量%と、繊度が2.2dtexであり且つ繊維長が5mmである十字断面を有するポリエチレンテレフタラート繊維(ユニチカ株式会社製,商品名:X531)4質量%とを含む抄紙原料を準備し、図4に示されるような不織布製造装置を用いて、不織布1を製造した。
なお、上記ポリエチレンテレフタラート繊維は、断面の内接円の半径rICが8.9μmであり、そして断面の外接円の半径rCCが17.1μmであり、異形度が1.92であった。 [Example 1]
71% by weight of softwood bleached kraft pulp (NBKP), 21% by weight of rayon (Corona, manufactured by Daiwabo Rayon Co., Ltd.) having a fineness of 1.1 dtex and a fiber length of 7 mm, a fineness of 0.6 dtex and 4% by mass of polyethylene terephthalate fiber having a fiber length of 10 mm and 4% by mass of polyethylene terephthalate fiber having a cross-section having a fineness of 2.2 dtex and a fiber length of 5 mm (trade name: X531 manufactured by Unitika Ltd.) % Was prepared, and the
The polyethylene terephthalate fiber had an inscribed circle radius r IC of 8.9 μm, a circumscribed circle radius r CC of 17.1 μm, and an irregularity of 1.92. .
高圧水流エネルギー(kW/m2)
=1.63×噴射圧力(kg/cm2)×噴射流量(m3/分)/処理時間(m/分)
により算出される。
また、噴射圧力(kg/cm2)は、次の式:
噴射圧力(kg/cm2)
=750×オリフィス開孔総面積(m2)×噴射圧力(kg/cm2)0.495
により算出される。 The high-pressure water flow energy (kW / m 2 ) is expressed by the following formula:
High-pressure water flow energy (kW / m 2 )
= 1.63 × injection pressure (kg / cm 2 ) × injection flow rate (m 3 / min) / processing time (m / min)
Is calculated by
The injection pressure (kg / cm 2 ) is expressed by the following formula:
Injection pressure (kg / cm 2 )
= 750 × Orifice opening total area (m 2 ) × Injection pressure (kg / cm 2 ) 0.495
Is calculated by
ウェブを、2台のウェブ搬送コンベアに転写した後、120℃に加熱されたヤンキードライヤーに転写し、乾燥させた。 The distance between the tip of the high pressure water nozzle and the top surface of the web was about 10 mm. Moreover, the hole diameter of the high-pressure water flow nozzle was about 92 μm, and the hole pitch was about 0.5 mm.
The web was transferred to two web conveyors and then transferred to a Yankee dryer heated to 120 ° C. and dried.
なお、実施例1では、抄紙速度は、約70m/分であった。 Next, the web was transferred to a Yankee dryer heated to 150 ° C. and dried to produce a
In Example 1, the paper making speed was about 70 m / min.
針葉樹晒クラフトパルプ(NBKP)71質量%と、繊度が1.1dtexであり且つ繊維長が7mmであるレーヨン(ダイワボウレーヨン(株)製、コロナ)21質量%と、繊度が0.6dtexであり且つ繊維長が10mmであるポリエチレンテレフタラート繊維8質量%とを含む抄紙原料に変更した以外は、実施例1と同様にして、不織布2を製造した。不織布2は、48g/m2の坪量と、0.322mmの厚さとを有していた。
また、実施例1と同様にして、取り出し試験を実施したところ、取り出し容易性(%)は80%であった。 [Comparative Example 1]
71% by weight of softwood bleached kraft pulp (NBKP), 21% by weight of rayon (Corona, manufactured by Daiwabo Rayon Co., Ltd.) having a fineness of 1.1 dtex and a fiber length of 7 mm, a fineness of 0.6 dtex and A
Further, when a take-out test was carried out in the same manner as in Example 1, the take-out ease (%) was 80%.
[J1]
湿式法により製造された不織布と、上記不織布に含浸させた薬液とを含むウェットワイプスであって、
上記不織布が、上記不織布の5~40質量%の、比重が1.0超の合成繊維と、上記不織布の60~95質量%のセルロース系繊維とを含み、そして
上記合成繊維が、上記合成繊維の20~100質量%の、異形の断面形状を有する合成繊維を含む、
ことを特徴とする、上記ウェットワイプス。 The present disclosure relates to the following J1 to J12.
[J1]
A wet wipe containing a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric,
The non-woven fabric includes 5 to 40% by mass of the non-woven fabric and a synthetic fiber having a specific gravity exceeding 1.0, and 60 to 95% by mass of the non-woven fabric cellulosic fiber, and the synthetic fiber is the synthetic fiber. 20 to 100% by weight of a synthetic fiber having an irregular cross-sectional shape,
The wet wipes as described above.
上記異形の断面形状を有する合成繊維が、少なくとも1つの窪み部を有する断面形状を有する、J1に記載のウェットワイプス。
[J3]
上記異形の断面形状を有する合成繊維が、略多角形から成り且つ当該略多角形の少なくとも1つの辺が窪んでいる断面形状を有する、J1又はJ2に記載のウェットワイプス。 [J2]
The wet wipes according to J1, wherein the synthetic fiber having an irregular cross-sectional shape has a cross-sectional shape having at least one recess.
[J3]
The wet wipes according to J1 or J2, wherein the synthetic fiber having the irregular cross-sectional shape has a cross-sectional shape that is formed of a substantially polygonal shape and at least one side of the substantially polygonal shape is recessed.
上記異形の断面形状を有する合成繊維が、略三角形、略四角形、略五角形、及び略六角形から成る群から選択され且つ全ての辺が窪んでいる断面形状を有する、J1~J3のいずれか一項に記載のウェットワイプス。 [J4]
Any one of J1 to J3, wherein the synthetic fiber having the irregular cross-sectional shape is selected from the group consisting of a substantially triangular shape, a substantially square shape, a substantially pentagonal shape, and a substantially hexagonal shape and has a cross-sectional shape in which all sides are recessed. The wet wipes according to the item.
上記異形の断面形状を有する合成繊維が、略C型、略V型及び略W型から成る群から選択される断面形状を有する、J1又はJ2に記載のウェットワイプス。
[J6]
上記異形の断面形状を有する合成繊維が、ポリエチレンテレフタラート繊維である、J1~J5のいずれか一項に記載のウェットワイプス。 [J5]
The wet wipes according to J1 or J2, wherein the synthetic fiber having the irregular cross-sectional shape has a cross-sectional shape selected from the group consisting of a substantially C-type, a substantially V-type, and a substantially W-type.
[J6]
The wet wipes according to any one of J1 to J5, wherein the synthetic fiber having an irregular cross-sectional shape is a polyethylene terephthalate fiber.
上記異形の断面形状を有する合成繊維が、親水化処理されている、J1~J6のいずれか一項に記載のウェットワイプス。
[J8]
上記セルロース系繊維が、パルプ及び再生セルロース繊維を含む、J1~J7のいずれか一項に記載のウェットワイプス。 [J7]
The wet wipes according to any one of J1 to J6, wherein the synthetic fiber having an irregular cross-sectional shape is hydrophilized.
[J8]
The wet wipes according to any one of J1 to J7, wherein the cellulosic fibers include pulp and regenerated cellulose fibers.
上記不織布100質量部当たり、上記薬液を、300~400質量部の比率で含む、J1~J8のいずれか一項に記載のウェットワイプス。
[J10]
上記不織布が、上記不織布の1~20質量%の、比重が1.0超の、異形の断面形状を有する合成繊維と、上記不織布の1~20質量%の、異形の断面形状を有しない合成繊維と、上記不織布の10~40質量%のレーヨンと、上記不織布の40~約88質量のパルプとを含む、J1~J9のいずれか一項に記載のウェットワイプス。 [J9]
The wet wipes according to any one of J1 to J8, which contains the chemical solution in a ratio of 300 to 400 parts by mass per 100 parts by mass of the nonwoven fabric.
[J10]
The non-woven fabric is 1 to 20% by mass of the non-woven fabric, a synthetic fiber having an irregular cross-sectional shape having a specific gravity of more than 1.0, and a synthetic fiber having 1 to 20% by mass of the non-woven fabric and not having an irregular cross-sectional shape The wet wipes according to any one of J1 to J9, comprising fibers, 10 to 40% by weight of rayon of the nonwoven fabric, and 40 to about 88% by weight of pulp of the nonwoven fabric.
複数のウェットワイプスが、開口部を有する頂部と、底部とを有する包装本体の内部で、順次取り出すことができる形態で収納されている、ウェットワイプスの包装体であって、
J1~J10のいずれか一項に記載の複数のウェットワイプスが、上記底部から上記頂部に至る方向に積層され、
上記底部側に位置する底部側ウェットワイプスの一部と、その頂部側に隣接する頂部側ウェットワイプスの一部とが、上記底部側ウェットワイプスの一部が上記頂部側ウェットワイプスの一部よりも上記頂部側に位置するようにお互いに重なり合う、
ことを特徴とする、上記包装体。 [J11]
A plurality of wet wipes are stored in a form that can be sequentially taken out inside a packaging main body having a top part having an opening and a bottom part.
A plurality of wet wipes according to any one of J1 to J10 are stacked in a direction from the bottom to the top,
A part of the bottom wet wipes located on the bottom side and a part of the top wet wipes adjacent to the top side are part of the bottom wet wipes of the top wet wipes. Overlapping each other so as to be located on the top side rather than a part,
The said package body characterized by the above-mentioned.
上記複数のウェットワイプスが、略Z型の折り畳み構造を有する、J11に記載の包装体。 [J12]
The package according to J11, wherein the plurality of wet wipes have a substantially Z-folded structure.
2 窪み部
3 突起部
11 不織布製造装置
12 原料供給ヘッド
13 ウェブ形成コンベア
14 ウェブ
15 吸引ボックス
16 高圧水流ノズル
18,19 ウェブ搬送コンベア
20,24 乾燥ドライヤー
21 サクションドラム
22 蒸気ノズル
23 不織布
25 巻き取り機
31 高圧水流
32 溝部
41 高圧水蒸気
42 溝部
101 ウェットワイプスの包装体
102 包装本体
103 開口部
104 シール材
105 ウェットワイプス 1 Synthetic fiber with irregular cross-sectional shape (irregular cross-section synthetic fiber)
DESCRIPTION OF
Claims (12)
- 湿式法により製造された不織布と、前記不織布に含浸させた薬液とを含むウェットワイプスであって、
前記不織布が、前記不織布の5~40質量%の、比重が1.0超の合成繊維と、前記不織布の60~95質量%のセルロース系繊維とを含み、そして
前記合成繊維が、前記合成繊維の20~100質量%の、異形の断面形状を有する合成繊維を含む、
ことを特徴とする、前記ウェットワイプス。 A wet wipe comprising a nonwoven fabric produced by a wet method and a chemical liquid impregnated in the nonwoven fabric,
The non-woven fabric includes 5 to 40% by mass of the non-woven fabric and a synthetic fiber having a specific gravity of more than 1.0, and 60 to 95% by mass of the non-woven cellulosic fiber, and the synthetic fiber is the synthetic fiber. 20 to 100% by weight of a synthetic fiber having an irregular cross-sectional shape,
The wet wipes characterized by the above. - 前記異形の断面形状を有する合成繊維が、少なくとも1つの窪み部を有する断面形状を有する、請求項1に記載のウェットワイプス。 The wet wipes according to claim 1, wherein the synthetic fiber having the irregular cross-sectional shape has a cross-sectional shape having at least one recess.
- 前記異形の断面形状を有する合成繊維が、略多角形から成り且つ当該略多角形の少なくとも1つの辺が窪んでいる断面形状を有する、請求項1又は2に記載のウェットワイプス。 The wet wipes according to claim 1 or 2, wherein the synthetic fiber having an irregular cross-sectional shape has a cross-sectional shape that is formed of a substantially polygonal shape and at least one side of the substantially polygonal shape is recessed.
- 前記異形の断面形状を有する合成繊維が、略三角形、略四角形、略五角形、及び略六角形から成る群から選択され且つ全ての辺が窪んでいる断面形状を有する、請求項1~3のいずれか一項に記載のウェットワイプス。 The synthetic fiber having an irregular cross-sectional shape is selected from the group consisting of a substantially triangular shape, a substantially square shape, a substantially pentagonal shape, and a substantially hexagonal shape, and has a cross-sectional shape in which all sides are recessed. The wet wipes according to claim 1.
- 前記異形の断面形状を有する合成繊維が、略C型、略V型及び略W型から成る群から選択される断面形状を有する、請求項1又は2に記載のウェットワイプス。 The wet wipes according to claim 1 or 2, wherein the synthetic fiber having the irregular cross-sectional shape has a cross-sectional shape selected from the group consisting of a substantially C-type, a substantially V-type and a substantially W-type.
- 前記異形の断面形状を有する合成繊維が、ポリエチレンテレフタラート繊維である、請求項1~5のいずれか一項に記載のウェットワイプス。 The wet wipes according to any one of claims 1 to 5, wherein the synthetic fiber having the irregular cross-sectional shape is a polyethylene terephthalate fiber.
- 前記異形の断面形状を有する合成繊維が、親水化処理されている、請求項1~6のいずれか一項に記載のウェットワイプス。 The wet wipes according to any one of claims 1 to 6, wherein the synthetic fiber having an irregular cross-sectional shape is hydrophilized.
- 前記セルロース系繊維が、パルプ及び再生セルロース繊維を含む、請求項1~7のいずれか一項に記載のウェットワイプス。 The wet wipes according to any one of claims 1 to 7, wherein the cellulosic fibers include pulp and regenerated cellulose fibers.
- 前記不織布100質量部当たり、前記薬液を、300~400質量部の比率で含む、請求項1~8のいずれか一項に記載のウェットワイプス。 The wet wipes according to any one of claims 1 to 8, wherein the chemical liquid is contained at a ratio of 300 to 400 parts by mass per 100 parts by mass of the nonwoven fabric.
- 前記不織布が、前記不織布の1~20質量%の、比重が1.0超の、異形の断面形状を有する合成繊維と、前記不織布の1~20質量%の、異形の断面形状を有しない合成繊維と、前記不織布の10~40質量%のレーヨンと、前記不織布の40~約88質量のパルプとを含む、請求項1~9のいずれか一項に記載のウェットワイプス。 The non-woven fabric is 1 to 20% by mass of the non-woven fabric and has a specific gravity of more than 1.0. The wet wipes according to any one of claims 1 to 9, comprising fibers, 10 to 40% by weight of rayon of the nonwoven fabric, and 40 to about 88% by weight of pulp of the nonwoven fabric.
- 複数のウェットワイプスが、開口部を有する頂部と、底部とを有する包装本体の内部で、順次取り出すことができる形態で収納されている、ウェットワイプスの包装体であって、
請求項1~10のいずれか一項に記載の複数のウェットワイプスが、前記底部から前記頂部に至る方向に積層され、
前記底部側に位置する底部側ウェットワイプスの一部と、その頂部側に隣接する頂部側ウェットワイプスの一部とが、前記底部側ウェットワイプスの一部が前記頂部側ウェットワイプスの一部よりも前記頂部側に位置するようにお互いに重なり合う、
ことを特徴とする、前記包装体。 A plurality of wet wipes are stored in a form that can be sequentially taken out inside a packaging main body having a top part having an opening and a bottom part.
A plurality of wet wipes according to any one of claims 1 to 10 are stacked in a direction from the bottom to the top,
A part of the bottom-side wet wipes located on the bottom side and a part of the top-side wet wipes adjacent to the top side are a part of the bottom-side wet wipes of the top-side wet wipes. Overlapping each other so as to be located on the top side rather than a part,
The said package body characterized by the above-mentioned. - 前記複数のウェットワイプスが、略Z型の折り畳み構造を有する、請求項11に記載の包装体。 The package according to claim 11, wherein the plurality of wet wipes have a substantially Z-shaped folding structure.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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AU2013342725A AU2013342725A1 (en) | 2012-11-09 | 2013-10-15 | Wet wipe and packaging for wet wipe |
CN201380046013.6A CN104603359B (en) | 2012-11-09 | 2013-10-15 | Wet wipe and packaging for wet wipe |
IN3901DEN2015 IN2015DN03901A (en) | 2012-11-09 | 2013-10-15 | |
KR1020157014814A KR102014909B1 (en) | 2012-11-09 | 2013-10-15 | Wet wipe and packaging for wet wipe |
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JP2012-247879 | 2012-11-09 | ||
JP2012247879A JP6091168B2 (en) | 2012-11-09 | 2012-11-09 | Wet wipes and wet wipes packaging |
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WO2014073334A1 true WO2014073334A1 (en) | 2014-05-15 |
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PCT/JP2013/077971 WO2014073334A1 (en) | 2012-11-09 | 2013-10-15 | Wet wipe and packaging for wet wipe |
Country Status (8)
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JP (1) | JP6091168B2 (en) |
KR (1) | KR102014909B1 (en) |
CN (1) | CN104603359B (en) |
AU (1) | AU2013342725A1 (en) |
IN (1) | IN2015DN03901A (en) |
MY (1) | MY163242A (en) |
TW (1) | TW201440713A (en) |
WO (1) | WO2014073334A1 (en) |
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USD837661S1 (en) | 2017-11-09 | 2019-01-08 | The Clorox Company | Wipes dispenser opening |
US10278552B2 (en) | 2016-12-08 | 2019-05-07 | The Clorox Company | Disinfecting wipes flex pack closure |
USD1011880S1 (en) | 2021-04-15 | 2024-01-23 | Professional Disposables International Inc. | Wipes container lid |
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KR102205529B1 (en) * | 2014-03-31 | 2021-01-20 | 코오롱인더스트리 주식회사 | Lyocell Fiber |
CN109987331A (en) * | 2017-12-29 | 2019-07-09 | 北京紫牛生活科技有限公司 | A kind of Wet towel packing box that automatic identification is even taken out |
JP2022092982A (en) * | 2020-12-11 | 2022-06-23 | ユニ・チャーム株式会社 | Wet wipes, container for wet wipes, and drug solution for wet wipes |
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- 2013-10-15 IN IN3901DEN2015 patent/IN2015DN03901A/en unknown
- 2013-10-15 AU AU2013342725A patent/AU2013342725A1/en not_active Abandoned
- 2013-10-15 CN CN201380046013.6A patent/CN104603359B/en active Active
- 2013-10-15 KR KR1020157014814A patent/KR102014909B1/en active IP Right Grant
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Also Published As
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AU2013342725A1 (en) | 2015-05-14 |
JP2014094188A (en) | 2014-05-22 |
TW201440713A (en) | 2014-11-01 |
CN104603359A (en) | 2015-05-06 |
KR102014909B1 (en) | 2019-08-27 |
IN2015DN03901A (en) | 2015-10-02 |
MY163242A (en) | 2017-08-30 |
KR20150084032A (en) | 2015-07-21 |
JP6091168B2 (en) | 2017-03-08 |
CN104603359B (en) | 2017-05-10 |
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